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A kind of hemostatic antibacterial dressing for vascular surgery

A hemostatic, antibacterial and surgical technology, applied in medical science, bandages, absorbent pads, etc., can solve the problems of short service life, poor wound wettability, poor mechanical properties of gel, etc. Good capacitive effect

Active Publication Date: 2021-09-21
NANYANG FIRST PEOPLES HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent document (publication number CN108704162A) discloses a water-absorbing dressing and its preparation method, which belongs to the field of medical technology and solves the problem of poor ability of existing hydrogel accessories to maintain wound moisture
The nano-silver antibacterial dressing of the invention uses chitosan combined with poloxamer as a carrier to introduce nano-silver, making the dressing stable and effective, and can be applied to wounds; however, the gel mechanical properties of the chitosan-poloxamer matrix are relatively poor , short service life

Method used

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  • A kind of hemostatic antibacterial dressing for vascular surgery
  • A kind of hemostatic antibacterial dressing for vascular surgery

Examples

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Effect test

Embodiment 1

[0031] A hemostatic antibacterial dressing for vascular surgery, such as figure 1 As shown, it includes a fiber layer 1 and a gel layer 2 from the outside to the inside, wherein the fiber layer 2 3 is arranged in the gel layer 2, and the gel layer 2 is made of the following raw materials in parts by weight: 50 parts of acrylic acid, N - 50 parts of methylol acrylamide, 10 parts of polyvinyl alcohol, 1 part of aluminum glycylate, 3 parts of talcum powder, 1 part of nano-silver, 1 part of polypropylene fiber, 5 parts of gelatin, 5 parts of polyvinylpyrrolidone, N, N - 0.5 part of methylenebisacrylamide, 0.5 part of sodium persulfate and 200 parts of water.

[0032] Fiber layer one 1 and fiber layer two 3 in the present embodiment are 1 layer of cotton gauze.

[0033] The gel in the gel layer is prepared by the following steps:

[0034] (1) Dissolve acrylic acid in water, add polyvinyl alcohol, N-methylolacrylamide, and polyvinylpyrrolidone in turn and stir well, then add alumi...

Embodiment 2

[0040] A hemostatic antibacterial dressing for vascular surgery, comprising a fiber layer 1 and a gel layer 2 from outside to inside, wherein the gel layer 2 is provided with a fiber layer 2 3, and the gel layer 2 is made of the following raw materials in parts by weight : 52 parts of acrylic acid, 48 parts of N-methylolacrylamide, 12 parts of polyvinyl alcohol, 1.2 parts of aluminum glycylate, 4 parts of talcum powder, 0.9 parts of nano-silver, 1.2 parts of polypropylene fiber, 5.5 parts of gelatin, polyvinylpyrrolidone 6 parts, 0.6 parts of N, N-methylenebisacrylamide, 0.6 parts of sodium persulfate and 210 parts of water.

[0041] Fiber layer one 1 and fiber layer two 3 in the present embodiment are two layers of cotton gauze.

[0042] The gel in the gel layer is prepared by the following steps:

[0043] (1) Dissolve acrylic acid in water, add polyvinyl alcohol, N-methylolacrylamide, and polyvinylpyrrolidone in turn and stir well, then add aluminum glycylate, talcum powder, ...

Embodiment 3

[0049] A hemostatic antibacterial dressing for vascular surgery, comprising a fiber layer 1 and a gel layer 2 from outside to inside, wherein the gel layer 2 is provided with a fiber layer 2 3, and the gel layer 2 is made of the following raw materials in parts by weight : 53 parts of acrylic acid, 45 parts of N-methylolacrylamide, 14 parts of polyvinyl alcohol, 1.4 parts of aluminum glycylate, 5 parts of talcum powder, 0.8 parts of nano silver, 1.4 parts of polypropylene fiber, 6 parts of gelatin, polyvinylpyrrolidone 7 parts, N, N-methylenebisacrylamide 0.7 parts, sodium persulfate 0.7 parts and water 220 parts.

[0050] Fiber layer one 1 in the present embodiment is one layer of cotton gauze, and fiber layer two 3 is two layers of cotton gauze.

[0051] The gel in the gel layer is prepared by the following steps:

[0052] (1) Dissolve acrylic acid in water, add polyvinyl alcohol, N-methylolacrylamide, and polyvinylpyrrolidone in turn and stir well, then add aluminum glycyl...

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Abstract

The invention discloses a hemostatic and antibacterial dressing for vascular surgery, which belongs to the technical field of medical dressings, and specifically includes a fiber layer 1 and a gel layer from the outside to the inside, the gel layer is provided with a fiber layer 2, and the gel layer Made from the following raw materials in parts by weight: 50-60 parts of acrylic acid, 40-50 parts of N-methylolacrylamide, 10-20 parts of polyvinyl alcohol, 1-2 parts of aluminum glycylate, 3-8 parts of talcum powder , nano silver 0.5‑1 part, polypropylene fiber 1‑2 part, gelatin 5‑8 part, polyvinylpyrrolidone 5‑12 part, N, N‑methylenebisacrylamide 0.5‑1.2 part, sodium persulfate 0.5‑ 1 part, 200‑260 parts of water. The antibacterial dressing has excellent antibacterial performance and long service life.

Description

technical field [0001] The invention relates to the technical field of medical dressings, in particular to a hemostatic and antibacterial dressing for vascular surgery. Background technique [0002] Vascular surgery is a branch of surgery, mainly aimed at the prevention, diagnosis and treatment of peripheral vascular diseases other than cerebrovascular and cardiovascular diseases. With the changes in lifestyle and eating habits, and the prolongation of the life expectancy of the population, the incidence of vascular diseases caused by chronic diseases such as diabetes, hypertension, hyperlipidemia, and obesity has increased year by year, and more and more vascular surgeries have been performed. Hemostatic dressings are needed during or postoperative rehabilitation to stop bleeding or absorb wound exudate to speed up wound recovery. [0003] The Chinese patent document (publication number CN108704162A) discloses a water-absorbing dressing and a preparation method thereof, be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L15/42A61L15/46A61L15/40A61L15/24
CPCA61L15/24A61L15/40A61L15/42A61L15/46A61L2300/102A61L2300/104A61L2300/214A61L2300/30A61L2300/404A61L2300/41A61L2300/412A61L2300/418A61L2300/45C08L23/12C08L33/02
Inventor 陈德才马从乾吕忠俊徐伟杨延陈辉雷月丽付莉萍
Owner NANYANG FIRST PEOPLES HOSPITAL
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